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Finding the Fourth Proportional to 503,215.40, 754,201.02 and 253,761.32

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Solution

The fourth proportional to 503,215.40, 754,201.02 and 253,761.32 is: 380,328.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,215.40 : 754,201.02 = 253,761.32 : x
  2. Step 2: Convert to fraction form
    503,215.40/754,201.02 = 253,761.32/x
  3. Step 3: Cross multiply
    503,215.40x = 754,201.02 × 253,761.32
  4. Step 4: Simplify right side
    503,215.40x = 191,387,046,380.55
  5. Step 5: Solve for x
    x = 191,387,046,380.55/503,215.40
  6. Step 6: Final answer
    x = 380,328.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.